If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4 + x + 7x2 = 0 Solving -4 + x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -0.5714285714 + 0.1428571429x + x2 = 0 Move the constant term to the right: Add '0.5714285714' to each side of the equation. -0.5714285714 + 0.1428571429x + 0.5714285714 + x2 = 0 + 0.5714285714 Reorder the terms: -0.5714285714 + 0.5714285714 + 0.1428571429x + x2 = 0 + 0.5714285714 Combine like terms: -0.5714285714 + 0.5714285714 = 0.0000000000 0.0000000000 + 0.1428571429x + x2 = 0 + 0.5714285714 0.1428571429x + x2 = 0 + 0.5714285714 Combine like terms: 0 + 0.5714285714 = 0.5714285714 0.1428571429x + x2 = 0.5714285714 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.1428571429x + 0.25 + x2 = 0.5714285714 + 0.25 Reorder the terms: 0.25 + 0.1428571429x + x2 = 0.5714285714 + 0.25 Combine like terms: 0.5714285714 + 0.25 = 0.8214285714 0.25 + 0.1428571429x + x2 = 0.8214285714 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.8214285714 Calculate the square root of the right side: 0.906326967 Break this problem into two subproblems by setting (x + 0.5) equal to 0.906326967 and -0.906326967.Subproblem 1
x + 0.5 = 0.906326967 Simplifying x + 0.5 = 0.906326967 Reorder the terms: 0.5 + x = 0.906326967 Solving 0.5 + x = 0.906326967 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.906326967 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.906326967 + -0.5 x = 0.906326967 + -0.5 Combine like terms: 0.906326967 + -0.5 = 0.406326967 x = 0.406326967 Simplifying x = 0.406326967Subproblem 2
x + 0.5 = -0.906326967 Simplifying x + 0.5 = -0.906326967 Reorder the terms: 0.5 + x = -0.906326967 Solving 0.5 + x = -0.906326967 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.906326967 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.906326967 + -0.5 x = -0.906326967 + -0.5 Combine like terms: -0.906326967 + -0.5 = -1.406326967 x = -1.406326967 Simplifying x = -1.406326967Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.406326967, -1.406326967}
| 7x+5y=28 | | 2x^2-15y=0 | | x/8-4=10 | | 3a+1=16+2a | | f(3x+5)=35 | | x+4=14+3x | | 3cotx=4 | | x(y+1)dx+dy=0 | | solvex(y+1)dx+dy=0 | | 3[5(x-4)+15]-[2(2x-2)+4]= | | 9h-24=24 | | x^2+4x-y^2=1 | | x^2+11x-2.75=0 | | -5x^2+2x-20=0 | | (x+y+6)dx+dy=0 | | 36x^2-33x-18=0 | | 24+y^2=0 | | 14.4=a^2 | | 20-5(x+3)=2(x+5)-8 | | 4x-12=5x+3 | | X+2sqrtx=1 | | logx(9)=0.5 | | 10x^2+10x+1=0 | | 3x^2+300x-2300=0 | | 3x^2+300x-3000=0 | | 0=3x^2+10x-5 | | 2e^5*x=7 | | 4x^2-63x-16=0 | | -4x^2+63x+16=0 | | (q+14)=2q+1 | | 5X+174=11X-6 | | x+y=x-y+20 |